This isn't any different than your argument that the existence of sociopaths means there can't be natural morals, and it makes just about as much sense. You cannot force morals on someone else: norals are inbuilt restraints, you can only force your will on someone else. The existence of people with morals different from yours equally does not demonstrate that natural morals don't exist.
I am curious as to how homo or fem fascists plan to force their will on you? Do you think they plan to make you have sex with them at gunpoint?
If it is true that each community is correct in choosing its own morals (as you have plainly stated), then the Christian community cannot be wrong!! We are also a community and under your system, we must be right. Therefore, you are CONTRADICTING YOUR OWN MORAL CODE WHEN YOU ARGUE AGAINST MORAL ABSOLUTISM. All you can say without sacrificing logic is that you do not prefer moral absolutism, but you cannot say it is incorrect without contradicting yourself; and since you have spent so muich time arguing against it, you have already committed the fait accompli. You have lost this debate. It's over. Fini. Termino. Your moral system has been weighed in the balance and found wanting!
The same way Hitler, Stalin forced their morals on their people - the force of bogus laws and the force of force. They are attempting to FORCE the Boy Scouts allow homosexuals to be members - this is tantamount to forcible sex when the perpetrator is a pedophile adult and the victim is a child. And it has happened already. Are you blind?